#!/bin/bash
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

port=1234
for i in `seq 5`;
do
	echo "check $port"
	pid=`lsof -i :$port|grep -v "PID" | awk '{print $2}'`
	if [ "$pid" != "" ];
	then
		echo "port is used, try next port"
		port=$[$port+1]
	else
	       echo "port is not used"
	       break
	fi
done
echo $port > server.port